L-Theanine Powder – USP Grade

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What it does for you:

  • Calm focus: relaxed and alert, not drowsy
  • Smooths out your coffee: a classic pairing
  • Easier evenings and more restful sleep
  • A steadier mood through busy days
  • A bioenergetic favorite: calm and energy together, from tea’s own amino acid
  • USP-grade L-theanine, the amino acid green tea is known for
  • Powder with a scoop · 100 g or 500 g

One ingredient. No fillers. Tea’s best trick, without the teapot. 60-day no hassle returns.

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Calm focus, relaxed and alert, with a smoother coffee and easier evenings.

  • Calm focus. Relaxed, alert, not drowsy.
  • A smoother coffee. Many people take it with their morning cup to take the edge off.
  • Easier evenings and more restful sleep.
  • A steadier mood when the day gets busy.

Why it fits bioenergetic living. Calm and energy aren't opposites. L-theanine takes the edge off without slowing you down, so it pairs naturally with coffee and a well-fed, energized day.

What you get:

  • USP-grade L-theanine, the amino acid naturally found in green tea. Other ingredients: none.
  • Powder with a scoop. 100 g or 500 g, easy to adjust.
  • Practically tasteless in water, with a faint savory note if you go looking for it.

60-day no hassle returns.

How to start: 200 mg once a day in water, on an empty stomach.

Raising slowly: If you want more, add a second 200 mg serving later in the day, up to 3 times daily (the label range).

If it feels like too much: Too relaxed or drowsy? Take less, or save it for the evening, and talk with your healthcare provider if you take medication.

For an exact amount, use a precision digital scale. Store cool, dark, dry.

L-Theanine

Other Ingredients: None

This is a pure, single-ingredient product with no fillers or additives.

Serving Size: 200 mg
Servings Per Container: 500 (100 g) | 2,500 (500 g)

Amount Per Serving:
L-Theanine — 200 mg
*Daily Value not established.

• USP Grade
• 100% pure L-Theanine
• Tested for purity and quality
• No fillers, additives, or unnecessary ingredients
• Packaged in a bag with scoop included

How much is a serving? 200 mg. 500 servings (100 g) · 2,500 servings (500 g).

Will it make me sleepy? Most people feel calm, not sleepy. Some prefer it in the evening.

Can I take it with coffee? Yes, that's one of the most popular ways.

What else is in it? Nothing.

L-theanine: what the research shows
These studies cover L-theanine in general, not this exact product.

Calm and sleep
Hidese S, Ogawa S, Ota M, et al. (2019). Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial. Nutrients 11(10):2362. PMID 31623400.
In healthy adults, daily L-theanine supported a calmer mood and better sleep quality.

Kimura K, Ozeki M, Juneja LR, Ohira H (2007). L-Theanine reduces psychological and physiological stress responses. Biol Psychol 74(1):39-45. PMID 16930802.

Relaxed alertness
Nobre AC, Rao A, Owen GN (2008). L-theanine, a natural constituent in tea, and its effect on mental state. Asia Pac J Clin Nutr 17 Suppl 1:167-8. PMID 18296328.
L-theanine increased alpha brain waves, a sign of relaxed alertness.

With coffee
Haskell CF, Kennedy DO, Milne AL, et al. (2008). The effects of L-theanine, caffeine and their combination on cognition and mood. Biol Psychol 77(2):113-22. PMID 18006208.

Owen GN, Parnell H, De Bruin EA, Rycroft JA (2008). The combined effects of L-theanine and caffeine on cognitive performance and mood. Nutr Neurosci 11(4):193-8. PMID 18681988.

Bioenergetic & low-toxin perspective
Ray Peat saw lower serotonin as part of a calmer, more energized state, and noted theanine's effect on it.
"The amino acid theanine, found in tea, has been reported to decrease the amount of serotonin in the brain, probably by decreasing its synthesis and increasing its degradation." — Ray Peat, "Serotonin: Effects in disease, aging and inflammation" (https://raypeat.com/articles/articles/serotonin-disease-aging-inflammation.shtml)
The study he cited: Yokogoshi H, Mochizuki M, Saitoh K (1998). Theanine-induced reduction of brain serotonin concentration in rats. Biosci Biotechnol Biochem 62(4):816-7. PMID 9614715.

This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

Consult your healthcare professional before use if you are pregnant, nursing, taking medication, or have a medical condition. Keep out of reach of children. Do not use if the bag is damaged, punctured, or the seal is broken.

Store in a cool, dark, dry place. Keep tightly closed. Protect from heat.

*Statements made on this website have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Calm focus, a smoother coffee and more restful evenings are why people take L-theanine. Here's why they choose ours:

  • USP grade, one ingredient, tested for purity, scoop in the bag.
  • Hundreds of servings per bag.
  • A shop for low-toxin, bioenergetic living, with real people who answer your questions.
  • 60-day no hassle returns.

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